package com.gavin.book.controller;

import com.gavin.book.constant.Constants;
import com.gavin.book.enums.BookStatusEnum;
import com.gavin.book.enums.ResultCodeEnum;
import com.gavin.book.model.*;
import com.gavin.book.service.BookService;
import jakarta.servlet.http.HttpSession;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;

@Slf4j
@RequestMapping("/book")
@RestController
public class BookController {

    @Autowired
    private BookService bookService;

    @RequestMapping("/addBook")
    public String addBook(BookInfo bookInfo){
        log.info("添加图书,request:{}",bookInfo);
        //1.参数校验
        //2.存储数据
        //3.返回结果
         if(!StringUtils.hasLength(bookInfo.getBookName())
                ||!StringUtils.hasLength(bookInfo.getAuthor())
                ||bookInfo.getCount()==null
                ||bookInfo.getPrice()==null
                ||!StringUtils.hasLength(bookInfo.getPublish())
                ||bookInfo.getStatus()==null
         ){
             log.error("添加图书,参数不合法,request:{}",bookInfo);
            return "参数不合法";
        }
        try{
            bookService.addBook(bookInfo);
            return "";
        }catch (Exception e){
            log.error("添加图书异常,e:",e);
            return "添加图书发生异常";
        }
    }

    @RequestMapping("/getListByPage")
    public Result<ResponseResult<BookInfo>> getListByPage(PageRequest pageRequest, HttpSession session){
        //参数校验
        //返回参数
        if(session.getAttribute(Constants.SESSION_USER_KEY)==null){
            return Result.unlogin();
        }
        UserInfo userInfo=(UserInfo)session.getAttribute(Constants.SESSION_USER_KEY);
        if(userInfo==null||userInfo.getId()<=0){
            //用户未登录
            return Result.unlogin();
        }
        ResponseResult<BookInfo> listByPage = bookService.getListByPage(pageRequest);
        return Result.sucess(listByPage);
    }

    @RequestMapping("/queryBookById")
    public BookInfo querBookById(Integer bookId){
        log.info("查询图书信息,bookId:"+bookId);

        return  bookService.querBookById(bookId);
    }

    @RequestMapping("/updateBook")
    public String updateBook(BookInfo bookInfo){
        log.info("修改图书，bookInfo:{}",bookInfo);
        try{
            bookService.updateBook(bookInfo);
            //成功
            return "";
        }catch (Exception e){
            log.info("修改图书发生异常,e:",e);
            return "修改图书发生异常";
        }
    }
    @RequestMapping("deleteBook")
    public String deleteBook(Integer bookId){
        log.info("删除图书，bookId:{}",bookId);
        try{
            BookInfo bookInfo=new BookInfo();
            bookInfo.setId(bookId);
            bookInfo.setStatus(BookStatusEnum.DELETED.getCode());
            bookService.updateBook(bookInfo);
            //成功
            return "";
        }catch (Exception e){
            log.info("删除图书发生异常,e:",e);
            return "删除图书发生异常";
        }
    }

    @RequestMapping("/batchDelete")
    public Boolean batchDalete(@RequestParam List<Integer> ids){
        log.info("批量删除图书,ids:{}",ids);
        try{
            bookService.batchDelete(ids);
            return true;
        }catch (Exception e){
            log.error("批量删除失败,e:",e);
            return false;
        }

    }

}
